CVE-2026-1258: 
WordPress vulnerability analysis and mitigation

CVE-2026-1258 is a blind SQL injection vulnerability in the Mail Mint plugin for WordPress, affecting all versions up to and including 1.19.2. The flaw exists in multiple API endpoints — forms, automation, email/templates, and contacts/import/tutorlms/map — due to insufficient escaping of user-supplied parameters. It was published on February 14, 2026, and carries a CVSS v3.1 base score of 4.9 (Medium) (Red Hat CVE).

The vulnerability is classified as CWE-89 (Improper Neutralization of Special Elements used in an SQL Command). Insufficient escaping of the order-by, order-type, and selectedCourses parameters, combined with inadequate SQL query preparation, allows attackers to append additional SQL statements to existing queries via the affected API endpoints. Because the injection is blind, attackers must use time-based or boolean-based inference techniques to extract data rather than receiving direct query output (Red Hat CVE). A Nuclei template pull request has been submitted for detection of this vulnerability (Nuclei Templates PR).

Successful exploitation allows an authenticated attacker with administrator-level access to extract sensitive data from the WordPress database, including user credentials, email addresses, contact lists, and other stored information, resulting in a high confidentiality impact. Integrity and availability are not directly affected by this vulnerability. The scope is limited to the WordPress installation's database, but exposed credentials could enable further lateral movement or account takeover (Red Hat CVE).

Exploitation requires authenticated access at the administrator level or above, significantly limiting the attack surface. The EPSS score is 0.025% (0.000250), indicating a low probability of widespread exploitation in the near term. No evidence of in-the-wild exploitation or threat actor attribution has been reported. A Nuclei detection template has been proposed (Nuclei Templates PR), and the CVE is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

1. Authentication: Obtain or compromise WordPress administrator credentials for the target site running Mail Mint ≤ 1.19.2.
2. Identify vulnerable endpoints: Target one of the affected REST API endpoints: /wp-json/.../forms, /wp-json/.../automation, /wp-json/.../email/templates, or /wp-json/.../contacts/import/tutorlms/map.
3. Inject blind SQL payload: Manipulate the order-by, order-type, or selectedCourses parameters with a blind SQL injection payload (e.g., time-based: 1 AND SLEEP(5)-- or boolean-based conditions) appended to the legitimate parameter value.
4. Infer data via responses: Use time delays or boolean response differences to enumerate database structure, extract table names, and retrieve sensitive data such as user credentials or contact information.
5. Automate extraction: Use tools such as sqlmap with session cookies to automate blind SQL injection data extraction from the identified endpoints (Red Hat CVE).

• Network: Unusual or repeated API requests to Mail Mint endpoints (/forms, /automation, /email/templates, /contacts/import/tutorlms/map) with anomalous order-by, order-type, or selectedCourses parameter values containing SQL syntax (e.g., SLEEP, AND 1=1, UNION SELECT).
• Logs: WordPress access logs showing high-frequency requests to Mail Mint REST API endpoints from a single authenticated session; database slow query logs indicating repeated time-delayed queries.
• Process: Unexpected database query patterns or elevated query execution times correlating with requests to the affected endpoints.

Users should update the Mail Mint plugin to a version beyond 1.19.2 that addresses this vulnerability. Until a patch is available or applied, administrators should restrict access to the affected API endpoints via firewall rules or web application firewall (WAF) rules that block requests containing SQL injection patterns in the relevant parameters. Limiting administrator account access and enforcing strong, unique credentials reduces the risk of exploitation (Red Hat CVE).

Coverage of this vulnerability has been limited to automated vulnerability tracking platforms such as VulDB, Vulners, CIRCL, and CVEFeed, with no notable researcher commentary or significant media coverage identified. A Nuclei template pull request was submitted to ProjectDiscovery's repository, indicating some community interest in detection (Nuclei Templates PR).